Changeset 46eec3b in mainline for uspace/lib/c/generic/async.c

Timestamp:

2011-01-25T22:15:36Z (13 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

8526e585

Parents:

c80fdd0

Message:

Introduce a callback mechanism to create and destroy client data area.

File:

• uspace/lib/c/generic/async.c (modified) (4 diffs)

uspace/lib/c/generic/async.c

@@ -168 +168 @@
 /** Identifier of the incoming connection handled by the current fibril. */
 fibril_local connection_t *FIBRIL_connection;
+
+static void *default_client_data_constructor(void)
+{
+        return NULL;
+}
+
+static void default_client_data_destructor(void *data)
+{
+}
+
+static async_client_data_ctor_t async_client_data_create =
+    default_client_data_constructor;
+static async_client_data_dtor_t async_client_data_destroy =
+    default_client_data_destructor;
+
+void async_set_client_data_constructor(async_client_data_ctor_t ctor)
+{
+        async_client_data_create = ctor;
+}
+
+void async_set_client_data_destructor(async_client_data_dtor_t dtor)
+{
+        async_client_data_destroy = dtor;
+}
 
 static void default_client_connection(ipc_callid_t callid, ipc_call_t *call);
@@ -517 +541 @@
         client_t *cl;
         link_t *lnk;
+        void *unref_client_data = NULL;
 
         /*
@@ -542 +567 @@
                 }
                 cl->in_task_hash = FIBRIL_connection->in_task_hash;
-                cl->data = NULL;
+                async_serialize_start();
+                cl->data = async_client_data_create();
+                async_serialize_end();
                 cl->refcnt = 1;
                 hash_table_insert(&client_hash_table, &key, &cl->link);
@@ -560 +587 @@
         if (--cl->refcnt == 0) {
                 hash_table_remove(&client_hash_table, &key, 1);
+                unref_client_data = cl->data;
                 free(cl);
         }
         futex_up(&async_futex);
+
+        if (unref_client_data)
+                async_client_data_destroy(unref_client_data);
 
         /*